IRC-server-and-client.md

+The IRC Server：Unrealircd
+
+![image](uploads/057cc653d3538e5a7c75e11b562bdb62/image.png)
+
+The IRC Client: Irssi 
+
+![image](uploads/c04e1e83a0ebd8c76776d1e2aec1ae39/image.png)
+
+when connect to IRC server
+
+![image](uploads/a93ddc1e2859eb44f8e69adce138f0b4/image.png)
+